Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1993-03-24
1998-05-12
Sniezek, Andrew L.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 68, 386 33, 348390, H04N 5917
Patent
active
057518939
ABSTRACT:
A variable length code recording/playback apparatus, which by encoding intra-frame data and inter-frame data in variable length code, records them as recorded codes on prescribed locations of tracks of a recording medium and plays them back, which includes a data rearranger for recording the data in areas to be played back at least two specific speed mode playbacks on the tracks by rearranging prescribed data out of the data encoded in variable length code, a variable length decoder for playing back the data recorded on the recording medium and decoding it in variable length code, a data restorer for controlling and restoring the time series of the output of the variable length decoder to the original data train before the rearrangement, and a decoder for constructing a playback picture from the decoded outputs for several frames in the specific speed mode playback by decoding the output of this data restorer.
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Pereira et al., "A CCITT Compatible Coding Algorithm for Digital Recording of Moving Images", Signal Processing. Image Communication, vol. 2, No. 2, Aug. 1990, Amsterdam NL pp. 155-169.
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Abe Shuji
Kurihara Kouichi
Shimoda Kenji
Kabushiki Kaisha Toshiba
Sniezek Andrew L.
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